LAX82AA274

NTSB accident investigation · Bell UH-1B · Valencia, CA · July 23, 1982

Accident · FatalFinal report
Date
July 23, 1982, 02:20 local (09:20 UTC)
Place
Valencia, CA
Injuries
3 fatal, 6 minor; on the ground: 3 fatal
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N87701Bell UH-1B
Weather
Visual (VMC) · Night/bright
Status
Completed · report July 23, 1983
Report
Board-adopted at Board Meeting
Safety recommendations
Yes
FAA report
19820723031869A
Case key
72906

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionManeuvering
Air/ground communications - not performedPilot in commandCause
Air/ground communications - not performedGround personnelCause
Crew/group coordination - not performedPilot in commandCause
Crew/group coordination - not performedGround personnelCause
Rotor system,tail rotor blade - foreign object damage
Rotor system,tail rotor blade - burned
Rotor drive system - vibration
Loss of control - in flightManeuvering
In flight collision with terrain/waterDescent - uncontrolled
Propeller/rotor contact to personDescent - uncontrolled

Analysis

Acft being used to film movie scene depicting attack of village typical of villges in viet nam. Acft was about 25 ft AGL & above location where special effects explosives were detonated. As the plt turned acft for camera coverage, acft'stail section was engulfed in fireball created by special effects explosion. T/r assembly separated & acft descended out of control. M/r blade struck 3 actors on ground. The board determined that the probable cause of the accident was the detonation of a debris-laden special effects explosion too near the acft. The proximity of the acft to the explosions was due to the failure to establish direct communications & coordination between the pilot, who was in charge of the acft operation, & the film director, who was in charge of the filming operation.

Aircraft

Registration
N87701
Reported as
Bell UH-1B
Category
Helicopter
Serial number
1162
Airframe hours
5,817
Engine
Lycoming T53-L-11D, 920 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 91
Operator
Western Helicopters, Inc.
Registered owner
Rocky Mountain Helicopters
Departed
4CA4 · Valencia, CA
Destination
4CA4 · Valencia, CA
Airport
4CA4 · Indian Dunes

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
35
Certificates
Private, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
4,514 total · 1,536 in this make and model · 4,364 as pilot in command · 60 in the last 90 days · 42 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/bright
Wind
Variable at 2 knots
Visibility
10 statute miles
Temperature
167 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.